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2/12/2025
WT Staff
Got water questions? Give us a call at 877-52-WATER (877-529-2837), or email us at info@watertoday.ca
February 12, 2025 823 am PST
Atmospheric river prompts flood watch for San Francisco
Flood Watch issued by NWS San Francisco 446 am PST Wed Feb 12
FLOOD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH SATURDAY
EVENING...
Flooding caused by excessive rainfall continues to be
possible for San Francisco, San Mateo, Santa Cruz, and Monterey
counties. Heavy rain and excessive runoff may result in flooding
of rivers, creeks, streams, and other low-lying and flood-prone
locations. Creeks and streams may rise out of their banks.
Flooding may occur in poor drainage and urban areas. Storm drains
and ditches may become clogged with debris. Extensive street
flooding and flooding of creeks and rivers are possible.
A round of moderate to heavy rain associated with an incoming Atmospheric River is expected Wednesday night into Thursday. Area rivers, streams and creeks that are prone to rapid rises will bring additional flooding concerns to the Central Coast where the heaviest rainfall is likely within the Santa Cruz Mountains and the Santa Lucia Range.
Monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Safety information is available, here.
Impacting San Francisco-San Francisco Bay Shoreline-San Francisco Peninsula
Coast-Santa Cruz Mountains-Southern Salinas Valley/Arroyo Seco and Lake San Antonio-Santa Lucia Mountains and Los Padres National Forest-Mountains of San Benito County And Interior Monterey County including Pinnacles National Park-Northern Salinas Valley/Hollister Valley and Carmel Valley-Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast
Including the cities of Watsonville, Daly City, Day Valley,
Marina, Monterey, Pacifica, King City, Seaside, San Francisco,
Santa Cruz, Fremont, Hayward, Oakland, Berkeley, Scotts Valley,
Greenfield, Live Oak, Salinas, and Boulder Creek
Streamflow Situation from the network of US Geological Survey river monitoring stations in California
Its clear, 43 degrees in the Central Valley Region 5 watershed, NWS San Joaquin-Hanford forecasting a high 57 with a 50% chance of rain today, increasing chances for rain to 90% for tonight, up to half an inch possible. Tomorrow comes with a 100% chance of rain, up to 2 inches possible. Forty-six degrees in San Francisco with rain expected later this afternoon, up to a tenth of an inch starting after 4 pm. Heavy rain tonight with a flood watch in effect, up to 2 inches possible with a high wind advisory and high surf advisory also in effect. South southeast wind gusts as high as 41 mph.
Los Angeles is 49 degrees, the high today 55 with a flash flood watch going into effect at 10 am tomorrow. Rain is expected through the day and overnight, up to a half an inch of rain possible.
San Diego is also under a flood watch starting tomorrow at 10 am. Current conditions in San Diego 53 degrees heading for the daytime high 57 degrees. Rain today continuing overnight, up to a half an inch new rainfall possible.
Safe Drinking Water Advisories
Los Angeles County: On February 6, the Altadena “Do Not Use” order has been updated to DO NOT DRINK-DO NOT BOIL YOUR WATER order. The official statement Lincoln Avenue Water Company, California Public Water System ID
# CA1910063 distributed 02/06/2025
"Due to the Eaton Fire, some structures within the Lincoln Avenue Water Company service area were
destroyed by the fire, and a section of the Lincoln Avenue Water Company water system depressurized.
Follow-up testing for volatile organic chemicals (VOC) detected Benzene at sample sites located on
E Manor St., Highview Ave., W Pine St., and E Pine St. Benzene results so far are as high as 22 parts
per billion (ppb). The current MCL is 1 ppb. These findings are being carefully evaluated, and mitigation
measures are in place to ensure water safety. The State Water Resources Control Board, Division of
Drinking Water; Los Angeles County Public Health Department; and the Lincoln Avenue Water
Company are advising residents of the affected area to NOT USE THE TAP WATER FOR DRINKING
AND COOKING UNTIL FURTHER NOTICE.
Due to VOCs’ ability to vaporize at lower temperatures and become airborne, residents are
advised to:
- Limit use of hot water
- Limit shower time/bathing, and do not take baths (use lukewarm water and ventilate area)
- Use a dishwasher to wash dishes and use air dry setting
- Wash clothing in cold water
- Avoid using clothes dryers (dry laundry outdoors)
- Do not use hot tubs or swimming pools
- Do not use ice from automatic ice makers
- Use proper ventilation when using water indoors
What should I do?
- DO NOT DRINK YOUR TAP WATER---USE ONLY BOTTLED WATER. Bottled water should be
used for all drinking (including baby formula and juice), brushing teeth, making ice and food
preparation until further notice.
- DO NOT TRY AND TREAT THE WATER YOURSELF. Boiling, freezing, filtering, adding chlorine
or other disinfectants, or letting water stand will not make the water safe.
UPDATES TO THIS ADVISORY WILL BE PROVIDED BASED ON MONITORING RESULTS.
For more information, call (626) 798-9101 or visit the website, here.
See Los Angeles County list of the drinking water notices, here. Scroll down to Water Alerts.
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